Math calculator
Statistics Calculator
Calculate mean, median, mode, and standard deviation from a list of numbers.
Formula
Summary statistics
Mean = sum / count; SD = sqrt(mean squared deviation)
For 4, 7, 7, 9, 12 the mode is 7.
FAQs
How many numbers can I enter?+
Start with the default fields, then use Add value to include as many additional numbers as you need.
How does the Statistics Calculator calculate the result?+
It uses the Summary statistics: Mean = sum / count; SD = sqrt(mean squared deviation). For 4, 7, 7, 9, 12 the mode is 7.
What information do I need to use the Statistics Calculator?+
Calculate mean, median, mode, and standard deviation from a list of numbers.
How accurate is the Statistics Calculator?+
Statistics Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the Statistics Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Math guide
How to use the Statistics Calculator
Calculate mean, median, mode, and standard deviation from a list of numbers. The page also explains the summary statistics and shows a practical example: For 4, 7, 7, 9, 12 the mode is 7.
- 1
Enter your details
Enter a list of numbers, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the summary statistics: Mean = sum / count; SD = sqrt(mean squared deviation).
- 3
Compare scenarios
Change one or more inputs to see how they affect the statistics Calculator result before you use the estimate.
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